Multiple DataGrids with cross grid references

Essential Calculate can manage multiple DataBoundGrid objects. You can have formulas that reference values in one grid from another grid.

Essential Calculate also provides support for sheet ranges. Setting the property CalcEngine.SupportsSheetRanges to true makes the engine supports sheet ranges like =SUM(Sheet1:Sheet3!A1) and =SUM(Sheet1:Sheet3!A1:B4).